Watts 909RPDA-LF-CFM-FS 4 - Part of the 909RPDA Series Basement Window Well 340 (Spanish)

340 (Spanish)

Roll Length: 100 feet (80 feet for certain options)

with corrosion resistance and structural strength for harsh environments

Waterproof Membrane Integration & Debris Protection: Designed to securely bind with the floor’s waterproofing layer and incorporates grate/strainer elements to block debris entry

Watts 909RPDA-LF-CFM-FS 4 - Part of the 909RPDA Series Basement Window Well 340 (Spanish)This 4 inch reduced pressure detector backflow preventer assembly prevents the reverse flow of fire protection system substances from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure. This assembly without the shutoff valves consists of an epoxy coated cast iron body, captured spring check valves, replaceable stainless steel seats, top mounted test cocks, a pressure differential relief valve, and comes